1// Locale support -*- C++ -*-
2
3// Copyright (C) 1997, 1998, 1999, 2007, 2009 Free Software Foundation, Inc.
4//
5// This file is part of the GNU ISO C++ Library.  This library is free
6// software; you can redistribute it and/or modify it under the
7// terms of the GNU General Public License as published by the
8// Free Software Foundation; either version 3, or (at your option)
9// any later version.
10
11// This library is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14// GNU General Public License for more details.
15
16// Under Section 7 of GPL version 3, you are granted additional
17// permissions described in the GCC Runtime Library Exception, version
18// 3.1, as published by the Free Software Foundation.
19
20// You should have received a copy of the GNU General Public License and
21// a copy of the GCC Runtime Library Exception along with this program;
22// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
23// <http://www.gnu.org/licenses/>.
24
25//
26// ISO C++ 14882: 22.1  Locales
27//
28
29//  We don't use the C-locale masks defined in mingw/include/ctype.h
30//  because those masks do not conform to the requirements of 22.2.1.
31//  In particular, a separate 'print' bitmask does not exist (isprint(c)
32//  relies on a combination of flags) and the  '_ALPHA' mask is also a
33//  combination of simple bitmasks.  Thus, we define libstdc++-specific
34//  masks here, based on the generic masks, and the corresponding
35//  classic_table in ctype_noninline.h.
36
37_GLIBCXX_BEGIN_NAMESPACE(std)
38
39  /// @brief  Base class for ctype.
40  struct ctype_base
41  {
42    // Non-standard typedefs.
43    typedef const int* 		__to_type;
44
45    // NB: Offsets into ctype<char>::_M_table force a particular size
46    // on the mask type. Because of this, we don't use an enum.
47    typedef unsigned short 	mask;
48    static const mask upper	= 1 << 0;
49    static const mask lower	= 1 << 1;
50    static const mask alpha	= 1 << 2;
51    static const mask digit	= 1 << 3;
52    static const mask xdigit	= 1 << 4;
53    static const mask space	= 1 << 5;
54    static const mask print	= 1 << 6;
55    static const mask graph	= (1 << 2) | (1 << 3) | (1 << 9);  // alnum|punct
56    static const mask cntrl	= 1 << 8;
57    static const mask punct 	= 1 << 9;
58    static const mask alnum	= (1 << 2) | (1 << 3);  // alpha|digit
59  };
60
61_GLIBCXX_END_NAMESPACE
62